In July 2009, the International Swimming Federation announced the global ban on "shark skin swimsuits" in 2010. (Background: On July 28th, Phelps was defeated by German swimmer Bidermann in the 200m freestyle final of the World Swimming Championships, ending Phelps' championship myth.)

During the World Championships swimming competition, the International Swimming Federation announced a resolution to ban high-tech swimsuits from 2010.

Since allowing the use of this swimsuit in 1999, it has attracted a lot of criticism. Many experts believe that the high-tech application of this "shark skin swimsuit" violates the essence of competition without external force. Under strong public pressure, the International Swimming Federation made a decision at the end of July 2009:

Starting from 2010: 1. Prohibit the use of high-tech swimsuits in competitions

2. The swimsuit material must be textile

3. Swimwear should not cover limbs

4. The world record before the use of the new rule will not be invalidated

The glorious history of shark skin swimsuits in the past decade has come to an end